
/*
 * -----------------------------------------------------------------------------
 * This source file is part of OGRE-Next
 * (Object-oriented Graphics Rendering Engine)
 * For the latest info, see http://www.ogre3d.org/
 *
 * Copyright (c) 2000-2014 Torus Knot Software Ltd
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 * -----------------------------------------------------------------------------
 */

#ifndef _LodCollapseCostProfiler_H__
#define _LodCollapseCostProfiler_H__

#include "OgreLodPrerequisites.h"

#include "OgreLodCollapseCost.h"
#include "OgreLodConfig.h"
#include "OgreLodData.h"

#include "ogrestd/unordered_map.h"

namespace Ogre
{
    class _OgreLodExport LodCollapseCostProfiler : public LodCollapseCost
    {
    public:
        LodCollapseCostProfiler( LodProfile &profile, LodCollapseCostPtr &costCalculator ) :
            mProfile( profile ),
            mCostCalculator( costCalculator )
        {
        }
        void initCollapseCosts( LodData *data ) override;
        void computeVertexCollapseCost( LodData *data, LodData::VertexI vertexi, Real &collapseCost,
                                        LodData::VertexI &collapseToi ) override;
        Real computeEdgeCollapseCost( LodData *data, LodData::VertexI srci,
                                      LodData::Edge *dstEdge ) override;

    protected:
        struct ProfiledEdge
        {
            LodData::VertexI dsti;
            Real             cost;
        };

        typedef vector<bool>::type HasVertexProfileList;

        HasVertexProfileList mHasProfile;

        typedef unordered_multimap<LodData::VertexI, ProfiledEdge>::type ProfileLookup;

        ProfileLookup mProfileLookup;
        LodProfile    mProfile;

        // If an edge doesn't have a profile, this collapsecost algorithm will be used.
        LodCollapseCostPtr mCostCalculator;

        void injectProfile( LodData *data );
    };

}  // namespace Ogre
#endif
